Dungeon Keeper - An excellent strategy game. Gold is the heart of everything; You need it to build rooms. You need it to pay your creatures. You need it to train your creatures. You need it to scavenge someone else's creatures. You need it to cast spells. The game plays very well,even by today's standards. I play it with regularity.
Supreme Commander: Forged Alliance - In my purely subjective opinion,the best damn strategy game ever made. Four factions,each with their own place in the game,and their own faction identity. That,and it's pretty damn well balanced. Sure,a Seraphim unit will,one to one,wreck everyone else's equivalent unit,but the Seraphim as a whole is incredibly expensive and lacks diversity. This is called a dynamic equilibrium,the BEST kind of balance.
The Legend of Dragoon - Play it. Seriously. It's a PS1 classic. RPG that tried to revolutionize combat,and would have succeeded if it didn't get buried under Final Fantasy VIII. The combat revolves around a VERY limited inventory of 32 items,which can consist of restorative or offensive items,and,more importantly,something called "Additions". An Addition is,in essence,a combo. Every character,save for one,has access to a host of them. Each Addition strikes a certain number of times,can be countered,and builds up a certain amount of Spirit Points to allow the character to enter a Dragoon form. The Additions aren't automatic,however: The player must press the X button with proper timing,lest they fail and deal reduced damage. If the enemy tries to counterattack,you must instead press O,where the price of failure is,on top of reduced damage,you getting batch slapped for a full attack from the target. As far as turn-based JRPG's go,an incredibly tactical experience.
The Elder Scrolls III: Morrowind - An excellent example of how to fuse traditional tabletop RPG with video game RPG,with a wicked plot to boot. Nearly any combination of skills can see you through to the end of the main quest,and the joinable factions actually demand that you meet certain skill expectations,if you wish to advance,or even join. Yeah,Alchemy OP,but I honestly believe that both Bloodmoon and Tribunal expect the game to be broken through Alchemy and Enchanting. Also,I box with Cliff Racers. For FUN.
That's about it,for me. I like my vidya.